I've taken a list of English words, and examined each of them to see what they sound like (using the PHP metaphone function). This page lists the most common metaphone codes, along with their words. You can also search for a word of your own, and see which words sound similar - and which ones rhyme, and which ones alliterate.
farriery farrier furriery firrier furrier farer frier varier fearer fairer fierier firer frore frere freer friary fuhrer furore verier fuehrer friar furor
briery farriery furriery curriery worrier parrier trier merrier drier burrier priory aerier moorier currier courier leerier derriere charrier tearier querier gorier crier farrier fierier hurrier burier harrier frier verier wearier warier eerier learier wirier sorrier terrier orrery dreary marrier prier furrier mirier carrier beerier tarrier brier charier varier quarrier barrier hoarier hairier firrier friary wrier airier ariary briary cheerier